Blower



G. ELEMENTS.

. BLOWER.;

APVPLICATIO'N FILED 'lULY l, 1921.

Patented July 18, 1922.

feo-ge 7 0. m en r.

UNITED-7' STATES,

PATENT OFFICE.

GEMS 0mm 0l' CHICAGO, ILLINOIS, ABSIGNOB T0 mlm ITG. C0., 0! .CHIGAGQ ILLINOIS, A OOBPOMTION 0l' ILLINOIS.

BLOWER.

1,423,190. Nima 0f um" :hielt- Ptented July 18, 1922.

Application lied July 1, 1981.l Serial lo. 401,988. i

To all 'whom it n3.ay' concern.' plied through the oiling duct B, theouter Be it known that I, GEORGE Cmairnms, a citizen of the United States, residm Chicago, in the county of Cook. and tate 5 of Illinois, have invented a certain new and useful Improvement in Blowers, of which the following is a specification.

My.;invent1on relatesto improvements 1n electric blowers, and particularly to blowers which have Afor their purpose to clean exposed machinery or any object on which dust or grit or foreign material gathers 1n large quantitX and must be quickly removed therefrom. further purpose of mymvention is toprovide suc a blower which is adapted to be converted into a suction cleaner. Other purposes will appear from time totime in the course of the specifica tion.

I'illustrate my invention more or'lessdiagrammatically'm the following drawlngs,

Figure 1 is a side elevation of the blower;

Fig. 2A is a top view of the blower;

-Fig. 3 is a section-on the line 3-3 of 2; y. :Fig 4 is a section .on the line 4-4 of Fi .2;

Fig.4; l A

Fig. 6 is a section on the plane yillustrated in Fig. 4, showing the suction attachment. 4 Fi 7 is a detail of the fan.

'Lu' e parts are illustrated by like letters and numbers throughout the drawings.

A is a blower fan casing bod having asection on the line 5*-.5 of

is lsecured a tapered blowing nozzle A* knurled as at A* and screw-threaded or' 40 otherwise removably secured to A as at A.

v to the fan casingis amotor hous- B with the usual electric connection or Each such sleeve is cut away at 'the top as at B B and is'surrounded by a felt ring B B which enters the cutaway and -contacts the ends of the shaft B. Thls ring is soaked with-oil and the oil chamber is closed as bythe caps atv lug B1, and having mounted therein a rotorv rotatin'on the shaft ,Bin the bearing lt-sleeves B* opening of which lies adjacent and within the aperture C2.

The details of motor and armature form no part of this invention, but at the outer end of the casing B is a plurality of apertures C, C, and at the inner end are the a rtures C, C. Mounted on the shaft Bs a jacent the partition A, which separates the fan casing from the motor casing, is a fan C* comprising a plurality-of tangential arms C of sheet metal, each arm having a strengthening rib C and having one edge turned at an angle of degrees to the arm to form the vanes C'. the rotor rotates, the fan, which is Secured a rotationv on the shaft, rotates with 1t and centrifugally propels air through the apertures C*` C, thus drawing air through the apertures C. C1 and cooling and ventilating the motor chamber.

- The shaft B projects through the partition A into the fan chamber, and keyed on it in the fan chamber is a fan hub D secured.

by the set screw Dlwhich penetrates the aperture D adjacent the outerend of the shaft B. Secured to this hub are the curved fan vanes D, and between the hub and the partition A are the anti-friction bearing strips D, which may be made of any preferred material.

The outer side A of the fan casing is apertured as at E, the wallsof the aperture being substantially concentric with the shaft,

the' vanes of the fan being cut away as at a' D to handle A* and a blowing spout to whichI provide a free space vadjacent "this aperture. About the aperture is a concentric raised ring E1 to which is secured a 1 rin E', as, for example,l by the screws E, an between the two rings is thereby clamped a wire lattice E* or any other suitable means for permitting the penetration4 of air 4while protecting the fan within.

When desired, the ring E Amay. be removed and with it the wire lattice E, and` in tsplace is secured asuction element which includes a F adapted to engage El andthereto, and a' ros ferred mouth piece or nozzle not herein illustrated.

While I have illustrated and described herein a working apparatus which isy actually successful"J and in use, it will be reallzed that the number, Shape, proportion and disposition of the parts, etc., might be widely varied without departing from the s irit of my invention, and the drawings an description must'be taken as in a great sense diagrammatic.

The use and operation of my invention are as follows:

I provide a fan blower in which the air is drawn through the wire grating and exhausted centrlfugall through the restricted blower or nozzle. llyhis provides a strong, confined jet of air which may be used for cleaning machinery or for blowing away dirt, grit, sand and ashes wherever they gather objectionably in exposed places.

If I so desire, I may convert the blower into a suction device by attaching a suction element to the air inlet. When so used, the

dirt-laden air is exhausted through the nozzle, but, if desired, the restricted nozzle may be removed and a bag ma even be applied in its place, or other suita le means be used to collect and dispose of the gathered dirt.

The rotor and fan are mounted on the same shaft' but lie in completely separated chambers. The motor chamber is cooled and ventilated by a. smaller fan mounted on the same shaft.

A' particularly advantageous type of bearing 1s shown, the lubricating action being independent of the position of the blower.

I claiml. A cleaner comprising a fan casing and a fan adapted to rotate therewithin, an air outlet therefor, a motor casing associated with said fan casing, an airtight parti-y tion therebetween, a. rotor adapted to rotate within said motor casing, a rotor shaft projecting through the partition between the motor and the fan casing, the fan being mounted on the outer end of said sha-ft, an air inlet in the outer side of said fan casing opposite the end of shaft, a plurality of Ventilating apertures adj aeent either, end of said motor casing.

2. A cleaner comprisin a fan casing and. a fan adapted to rotate erewithin, an air outlet therefor, a motor casing associated with said fan casing, an airtight partition therebetween, a rotor adapted to rotate within said motor casing, a rotor shaft projecting through the partition between the motor and the fan casing, the fan being mounted on the outer end of said shaft, an air inlet in the outer side of said fan casing opposite the end of shaft, a Ventilating fan outlet therefor, a motr casin mounted in said motr casing in said rotor Shaft.

3. A cleaner comprising a fan casing and a fan adapted to rotate therewithin, an air outlet therefor, a motor casing aociated with said fan casing, an airtight partition therebetween, a rotor adapted: to rotate within said motor casing, a rotor shaft projectin through the partition between the motor an the fan casing, the fan being mounted on the outer end of said shaft, an air inlet in the outer side of said fan casing opposite the end of shaft, a Ventilating fan mounted in said motor casing in said rotor shaft, a plurality of Ventilating apertures in said casing.

4. A cleaner comprising a fan casing and a fan adapted to rotate therewithin, an air associated with said fan casing, an airtig t partition therebetweenfa rotor adapted to rotate within said motor casing, a rotor shaft projecting through lthe partition between the motor and the fan casing, the fan being mounted on-the outer end of said shaft, an air inlet in the outer side of said fan casing opposite the end of shaft, a Ventilating fan mounted in said motor casing in said rotor shaft, a plurality of Ventilating a ertures in said casing, one or more of sai apertures lying in a plane perpendicular to the roter shaft, in which plane the Ventilating fan is adapted to maas.

5. A cleaner .comprising a. fan casing and a fan adapted to rotate therewithin, an air outlet therefor, a motor casin associated with said fan casing, an airtig t partition therebetween, a rotor adapted to rotate within said motor casing, a rotor shaft projecting through the partition between the motor and the fan casing, the fan being mountedl on the outer end' of said shaft, an air inlet in the outer side of said fan casing opposite v the end of shaft, a Ventilating fan mounted on said motor casing in said roter shaft, a plurality of Ventilating a rtures in said casing one orI more of mi apertures lying in a plane perpendicular to the rotor shaft, in which plane the Ventilating fan is adapted to rotate, the Vanes of said fan lying in planes radiating from the rotor axis.

6. A cleaner comprising asociated but separated motor and fan casi a rotating shaft mounted therein, an projecting through both chambers, a rotor and a fan mounted thereon, Ventilating apertures in said motor casing, and a Ventilating fan mounted lon said shaft in said casin Signed at Chi o county of k and State of Illinois, this 28th day of J une 1921.

cineast CLEMENTS. 

